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Bioluminescence
Bioluminescence occurs when organisms convert chemical energy into visible light. This happens when a chemical reaction involving oxygen and two other molecules takes place. During this reaction, light of varying colors may be emitted. The great majority of organisms that use bioluminescence are found deep in the oceans depths. This ability to produce light serves a variety of functions. Organisms may use it to do anything from escape their predators
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| Post dates | Users | rates | Contents |
|---|---|---|---|
| 2016-03-03 | saramhl | 90.00 | Check this speaking |
| 2014-04-14 | Ekhlass1980 | 80.00 | Check this speaking |
| 2013-11-08 | Pinky123 | 85.00 | Check this speaking |
| 2014-04-14 | Ekhlass1980 | 80.00 | Check this speaking |
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- Some students prefer to attend a school that provides education for womenonly or men only. Other students prefer to attend a co-educational school for bothwomen and men. Which environment do you think is better and why? Use specificreasons and examples to 80
- Describe something that you do to reduce stress. 95
- History Seminars Should Be ShorterCurrently, all of the seminar classes in the history department are three hours long. I would like to propose that history seminars be shortened to two hours. I make this proposal for two reasons. First, most students jus 80
- question 6 85
- Your university is planning to allow students to watch TV in their dormitories. What is your opinion and why? What are the advantages and disadvantages of watching TV in dormitories? Include reasons and examples to support your response. 80
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The second example is short.